The day began well for the squad, with a photo-finish win in the coxless fours final setting the standard.
Sailor Ben Ainslie then sealed his gold in the last race in the Finn class, followed by cyclist Bradley Wiggins who won the 4,000m individual pursuit.
Britain's gold medal haul was then boosted when horse rider Leslie Law was upgraded in the individual eventing.
Appeal
The Germans, who's team had won the three-day eventing, had the gold taken off them after contestant Bettina Hoy had 12 points docked from her score.
This meant Law was promoted to gold, the British equestrian team moved up to second and got silver and Pippa Funnell has been awarded the bronze.
More medals for Team GB
Britain is also celebrating taking silver in the woman's coxless pairs and bronze in the woman's double sculls in rowing.
And in swimming David Davies took a bronze for Britain in the men's 1500m.
Elsewhere in the athletics, Britain's defending heptathlete champion Denise Lewis, who was in 18th place in the competition, has pulled out.
Heptathlon hope
But fellow Brit Kelly Sotherton is well positioned to claim a medal in the heptathlon on Saturday evening.
In another disappointment, in the 100m when injured Darren Campbell failed to qualify for the second round.
But other British hopes Mark Lewis-Francis and Jason Gardener breezed through.
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